<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css/bootstrap.css">
    <script src="js/jquery-1.12.4.js"></script>
    <script src="js/bootstrap.js"></script>
    <style>

    </style>
</head>
<body>

<nav class="navbar navbar-default">
    <div class="container-fluid">
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#">课工场</a>
        </div>
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
                <li class="active"><a href="#">首页 <span class="sr-only">(current)</span></a></li>
                <li><a href="#">入门课</a></li>
                <li><a href="#">岗位课</a></li>
                <li><a href="#">技能库</a></li>
                <li><a href="#">微社区</a></li>
                <li><a href="#">学员&nbsp;<span style="background-color: red;color: white;padding: 5px;border-radius: 4px">new</span></a></li>
            </ul>
            <form class="navbar-form navbar-left">
                <div class="form-group">
                    <input type="text" class="form-control" placeholder="Search">
                </div>
                <button type="submit" class="btn btn-default">Submit</button>
            </form>
            <ul class="nav navbar-nav" style="justify-content:space-between;">
                <li><a href="#">登陆</a></li>
                <li><a href="#">注册</a></li>
            </ul>
        </div><!-- /.navbar-collapse -->
    </div><!-- /.container-fluid -->
</nav>
</body>
</html>